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Everyday Science
MEDIUM
ENGLISH
Everyday Science
A ‘breath test’ used by traffic police to check drunken driving uses ____?
A
Turmeric on filter paper
Option A
B
Silica gel coated with silver nitrate
Option B
C
potassium permanganate-sulphuric acid
Option C
Potassium dichromatic-sulphuric acid
Correct answer
Correct answer: D
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